Welding device for hydraulic cylinder

Abstract

The utility model relates to hydraulic cylinder production equipment, in particular to a welding device for a hydraulic cylinder, which is characterized in that a rotating clamp and a welding assembly for clamping a hydraulic cylinder body and a sealing cover are arranged on a platen of a rack; the welding assembly comprises a first back plate and a second back plate which are vertically arranged front and back, and a first welding seat is arranged on the first back plate in a horizontal sliding manner; a mounting plate capable of sliding in a lifting mode is arranged on the second back plate, a locking structure is arranged between the mounting plate and the second back plate, and a second welding base is arranged on the mounting plate in a horizontal sliding mode. And welding heads for welding the hydraulic cylinder body are arranged on the first welding seat and the second welding seat. The automatic welding assembly and the rotating clamp are used in cooperation, rapid and stable welding of the hydraulic cylinder body and the sealing cover is achieved, simultaneous welding of the upper end cover and the lower end cover can also be achieved, and production efficiency is remarkably improved.

Description

Technical Field

[0001] This application belongs to the technical field of hydraulic cylinder production equipment, and in particular relates to a welding device for hydraulic cylinders. Background Technology

[0002] As a key component in hydraulic systems, the manufacturing quality of hydraulic cylinders directly affects the performance and reliability of the entire system. During the manufacturing and assembly process, some cylinder bodies and end caps are fixedly connected by welding. Existing welding methods often use simple clamps for fixing and then manual welding. This welding method is inefficient and the welding quality is unstable. Currently, there are also some automated welding devices designed according to the product size characteristics of hydraulic cylinders. However, they can only be used for specific hydraulic cylinder welding operations and have poor applicability. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a welding device for hydraulic cylinders to overcome the shortcomings of the prior art, aiming to achieve at least one of the following technical effects: improve welding efficiency and welding quality, and enhance the applicability of the welding device.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A welding apparatus for a hydraulic cylinder includes a frame, wherein a rotating clamp and welding assembly for clamping a hydraulic cylinder body and a cover are provided on a platform of the frame.

[0006] The welding assembly includes a first back plate and a second back plate arranged vertically at the front and back, and a first welding seat is arranged on the first back plate that can slide horizontally.

[0007] The second back plate is provided with a lifting and sliding mounting plate, and a locking structure is provided between the mounting plate and the second back plate. A second welding seat is provided on the mounting plate that can slide horizontally.

[0008] Both the first welding seat and the second welding seat are provided with welding heads for welding hydraulic cylinder bodies.

[0009] Preferably, in the welding device for hydraulic cylinders of the present invention, a third back plate perpendicular to the first back plate is further provided on the platform of the frame, and a first driving cylinder is fixedly provided on the third back plate. The first driving cylinder is used to drive the first welding seat to move horizontally.

[0010] Preferably, in the welding device for hydraulic cylinders of this utility model, the third back plate is further provided with a first waist hole in the length direction, and a second driving cylinder is slidably installed in the first waist hole. The second driving cylinder is used to drive the second welding seat to move horizontally and is linked with the lifting of the second welding seat.

[0011] Preferably, in the welding device for hydraulic cylinders of the present invention, a locking block is fixedly connected to the front end cover of the second drive cylinder, and a locking bolt for abutting against the third back plate is screwed onto the locking block.

[0012] Preferably, in a welding device for a hydraulic cylinder according to the present invention, a second back plate is provided with a second waist hole in the height direction, a locking bolt is fixedly connected to the mounting plate, and the locking bolt passes through the second waist hole and is locked to the second back plate by a locking nut.

[0013] Preferably, in a welding device for a hydraulic cylinder according to the present invention, the rotating clamp includes a base plate that can be horizontally slidably mounted on a machine frame platform, a rotatable lower tooling is provided on the base plate, a cantilever frame is fixedly connected to the base plate, an upper tooling that can be rotated and lifted is provided on the cantilever frame, and the hydraulic cylinder body and upper and lower covers are clamped between the upper and lower toolings.

[0014] Preferably, in the welding device for hydraulic cylinders of this utility model, a fourth drive cylinder is also provided on the cantilever frame, the fourth drive cylinder being used to drive the upper tooling lifting action.

[0015] Preferably, in the welding device for hydraulic cylinders of this utility model, a lifting mechanism is further provided on the base plate, which is used to drive the lower tooling to lift.

[0016] Preferably, in the welding device for hydraulic cylinders of this utility model, a third drive cylinder is further provided on the frame. The drive rod of the third drive cylinder is connected to the base plate and is used to drive the base plate to move closer to or away from the welding head.

[0017] The beneficial effects of this utility model are:

[0018] (1) Improve welding efficiency: Through the combined use of automated welding components and rotating fixtures, rapid and stable welding of hydraulic cylinder bodies and caps is achieved, and simultaneous welding of upper and lower end caps is also possible, which significantly improves production efficiency.

[0019] (2) Ensure welding quality: The precise control and adjustment functions of the welding components ensure the stability and consistency of the welding operation and improve the welding quality;

[0020] (3) Enhanced adaptability: The adjustable design of the rotating fixture and welding components makes this device suitable for welding hydraulic cylinders of different sizes and specifications, enhancing the versatility and flexibility of the equipment. Attached Figure Description

[0021] The technical solution of this application will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the front structure of the device according to an embodiment of this application;

[0023] Figure 2 This is a schematic diagram of the rear structure of the device according to an embodiment of this application;

[0024] The attached figures are labeled as follows:

[0025] Frame 10, rotating fixture 20, welding assembly 30;

[0026] Base plate 21, third drive cylinder 22, first back plate 31, second back plate 32, first welding seat 33, mounting plate 34, second welding seat 35, third back plate 36, first drive cylinder 37, second drive cylinder 38, locking block 39. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0028] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] The technical solution of this application will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] Example

[0032] This embodiment provides a welding device for hydraulic cylinders, referring to... Figure 1 and Figure 2 Its structure includes a frame 10, on which a rotating clamp 20 for clamping the hydraulic cylinder body and the cover and a welding assembly 30 for welding operations are provided.

[0033] Specifically, the welding assembly 30 includes a first back plate 31 and a second back plate 32 that are vertically arranged on the frame platform. A horizontal guide rail is installed on the first back plate 31, and a first welding seat 33 is slidably installed on the horizontal guide rail.

[0034] Preferably, in a welding device for a hydraulic cylinder according to this embodiment, a vertical guide rail is provided on the second back plate 32, a mounting plate 34 is slidably mounted on the vertical guide rail, and a locking structure is provided between the mounting plate 34 and the second back plate 32. A horizontal guide rail is also mounted on the mounting plate 34, and a second welding seat 35 is slidably mounted on the horizontal guide rail.

[0035] Both the first welding seat 33 and the second welding seat 35 are equipped with laser welding heads for welding hydraulic cylinder bodies. The specific structure of the laser welding heads is not shown in the attached drawings.

[0036] Specifically, the locking structure includes a second waist hole in the height direction on the second back plate 32, and a locking bolt fixedly connected to the mounting plate 34. The locking bolt passes through the second waist hole and is locked to the second back plate 32 by a locking nut. After the mounting plate 34 is adjusted, the locking nut is tightened to lock and fix the mounting plate 34 in the height direction.

[0037] Preferably, in a welding device for a hydraulic cylinder according to this embodiment, a third back plate 36 perpendicular to the first back plate 31 is also provided on the platform of the frame 10. A first driving cylinder 37 is fixedly provided on the third back plate 36. The first driving cylinder 37 is used to drive the first welding seat 33 to move horizontally.

[0038] Preferably, in a welding device for a hydraulic cylinder according to this embodiment, a first waist hole in the length direction is provided on the third back plate 36, and a second drive cylinder 38 is slidably installed in the first waist hole. The second drive cylinder 38 is used to drive the second welding seat 35 to move horizontally and is linked with the lifting of the second welding seat 35.

[0039] Preferably, in the welding device for hydraulic cylinders of this embodiment, a locking block 39 is fixedly connected to the front end cover of the second drive cylinder 38, and a third back plate 36 is clamped between the locking block 39 and the front end of the cylinder body of the second drive cylinder 38. A locking bolt for abutting against the third back plate 36 is screwed onto the locking block 39. After the mounting plate 34 is adjusted to the same height, the locking bolt fixes the second drive cylinder 38 to the third back plate 36.

[0040] Preferably, in this embodiment, a welding device for a hydraulic cylinder includes a rotating clamp 20 comprising a base plate 21 slidably mounted on a machine frame via a horizontal guide rail. A rotatable lower tooling is mounted on the base plate 21 via a slewing bearing. A cantilever frame is also fixedly connected to the base plate 21. An upper tooling capable of rotation and lifting is mounted on the cantilever frame. Specifically, the cantilever frame and the upper tooling are slidably connected via a sliding rod. A fourth drive cylinder is also mounted on the cantilever frame. The extension rod of the fourth drive cylinder is connected to the upper tooling and is used to drive the upper tooling to lift.

[0041] Preferably, in this embodiment, a welding device for a hydraulic cylinder includes a lower tooling comprising a mandrel and a sleeve that can be lifted and sleeved on the mandrel. The sleeve is provided with a clamping structure for clamping the lower end cover. An axial limiting strip is provided between the sleeve and the mandrel to limit relative rotation but not affect relative axial movement. A drive motor and a synchronous belt transmission mechanism for driving the mandrel and sleeve to rotate are provided on the base plate 21. The upper tooling includes a mounting base and an upper cover positioning ring that is rotatably connected to the mounting base via bearings.

[0042] Preferably, in a welding device for a hydraulic cylinder according to this embodiment, a lifting mechanism is also provided on the base plate 21. The lifting mechanism includes a top ring rotatably sleeved on the sleeve, and a limit ring is provided on the top of the sleeve. When the top ring moves upward, it abuts against the limit ring and pushes the lifting mechanism to drive the sleeve on the lower tooling to rise.

[0043] Preferably, in this embodiment, a welding device for a hydraulic cylinder is further provided with a third drive cylinder 22 on the frame. The drive rod of the third drive cylinder 22 is connected to the base plate 21 and is used to drive the base plate 21 to move closer to or away from the welding head.

[0044] In actual operation, the hydraulic cylinder body and upper and lower end caps to be welded are placed according to the welding requirements. The two end caps can be welded to the hydraulic cylinder body simultaneously, or the upper end cap or the lower end cap can be welded to the hydraulic cylinder body separately. In this embodiment, the hydraulic cylinder body and the upper and lower end caps are welded simultaneously. The specific operation process is as follows: the lower end cap is placed on the lower fixture, and then the cylinder body and the upper end cap are placed. The lifting mechanism is activated to lift the weld seam between the lower end cap and the cylinder body and align it with the welding head of the first welding seat 33. Then, the fourth drive cylinder drives the upper fixture to move down and press the welded parts. The height of the mounting plate 34 and the second drive cylinder 38 is adjusted and locked until the welding head of the second welding seat 35 is aligned with the weld seam between the upper end cap and the cylinder body. The first drive cylinder 37 and the second drive cylinder 38 extend and drive the two welding heads to approach their respective welding points to a suitable position to start welding. The drive motor and the synchronous belt transmission mechanism drive the welded parts to rotate one revolution, and the welding is completed.

[0045] Based on the above-described preferred embodiments according to this application, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this application. The technical scope of this application is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A welding apparatus for hydraulic cylinders, characterized in that, Includes a frame (10), on which a rotating clamp (20) and a welding assembly (30) for clamping a hydraulic cylinder body and a cover are provided; The welding assembly (30) includes a first back plate (31) and a second back plate (32) arranged vertically at the front and back, and a first welding seat (33) is arranged horizontally on the first back plate (31). The second back plate (32) is provided with a lifting and sliding mounting plate (34), and a locking structure is provided between the mounting plate (34) and the second back plate (32). The mounting plate (34) is provided with a second welding seat (35) that can slide horizontally. Both the first welding seat (33) and the second welding seat (35) are provided with welding heads for welding hydraulic cylinder bodies.

2. The welding device for a hydraulic cylinder according to claim 1, characterized in that, The frame (10) is also provided with a third back plate (36) perpendicular to the first back plate (31). The third back plate (36) is fixedly provided with a first driving cylinder (37), which is used to drive the first welding seat (33) to move horizontally.

3. The welding device for a hydraulic cylinder according to claim 2, characterized in that, The third back plate (36) is also provided with a first waist hole in the length direction. A second drive cylinder (38) is slidably installed in the first waist hole. The second drive cylinder (38) is used to drive the second welding seat (35) to move horizontally and is linked with the lifting of the second welding seat (35).

4. The welding apparatus for a hydraulic cylinder according to claim 3, characterized in that, The front end cover of the second drive cylinder (38) is also fixedly connected to a locking block (39), and the locking block (39) is screwed with a locking bolt for abutting against the third back plate (36).

5. A welding apparatus for a hydraulic cylinder according to claim 4, characterized in that, The second back plate (32) is provided with a second waist hole in the height direction. A locking bolt is fixedly connected to the mounting plate (34), and the locking bolt passes through the second waist hole and is locked to the second back plate (32) by a locking nut.

6. A welding apparatus for a hydraulic cylinder according to any one of claims 1-5, characterized in that, The rotating fixture (20) includes a base plate (21) that can slide horizontally on the machine frame platform. A rotatable lower tooling is provided on the base plate (21). A cantilever frame is also fixedly connected to the base plate (21). An upper tooling that can rotate and lift is provided on the cantilever frame. A hydraulic cylinder and upper and lower covers are clamped between the upper and lower tooling.

7. A welding apparatus for a hydraulic cylinder according to claim 6, characterized in that, The cantilever is also equipped with a fourth drive cylinder, which is used to drive the upper tooling to lift.

8. A welding apparatus for a hydraulic cylinder according to claim 7, characterized in that, A lifting mechanism is also provided on the base plate (21), which is used to drive the lower tooling to lift.

9. A welding apparatus for a hydraulic cylinder according to claim 8, characterized in that, The frame is also equipped with a third drive cylinder (22), the drive rod of which is connected to the base plate (21) and is used to drive the base plate (21) to move closer to or away from the welding head.

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